UNSPSC 25172005: Train suspension systems

UNSPSC 25172005 Train suspension systems, Commodity tier, comprises individual suspension components and assemblies that state and local transit authorities and counties procure for fleet maintenance and replacement. The code covers discrete parts including shock absorbers, springs, rods, bushings, brackets, hubs, studs, knuckles, and fasteners—all subordinate elements of larger suspension systems rather than integrated suspension packages. Dallas County and the Dallas Area Rapid Transit Authority (DART) dominate the recent activity; DART appears across multiple recent solicitations for shock absorber assemblies, brackets, radius rod assemblies, and hub studs, while Dallas County issues frequent bids for individual suspension fasteners and components. The work is straightforward goods procurement with short response windows, typically three to five days between posting and due date, and compressed award cycles suggesting replacement of failed or worn fleet components rather than planned capital projects.

Recent activity concentrates in Texas, specifically the Dallas area, across two issuing bodies over the past four months. DART's procurement activity includes a shock absorber front and rear axle assembly bid (reference 2098834, due May 22, 2026), a bracket RR front axle procurement (reference 2098546, due May 14, 2026), and a radius rod assembly rear bid (reference 2097947, due April 28, 2026)—all posted with three- to five-day response windows and governed by Texas law with vendor certifications required regarding equal opportunity, foreign terrorist organizations, and Israel boycott status. Dallas County issued multiple bids for component fasteners and subassemblies throughout the period, including air spring bellows (reference 2101241, due October 16, 2026), push rod rear suspension (reference 2100914, due October 9, 2026), arm leveling valve suspension (reference 2100834, due October 5, 2026), and shock absorber assemblies (reference 2098834). Contract values, incumbent vendors, set-aside designations, and detailed technical specifications are not disclosed in the available documentation; vendors should contact the issuing procurement offices directly to confirm scope, quantity, delivery location, and competitive terms before pursuing.